.app{
    width: 100vw;
    height: 200px;
    background: #282c34;
    display: flex;
    align-items: center;
    justify-content: center;
}
.app.active{
    background: #f00;

}
.asd{
    width:60px;
    height: 63px;
    background: #000000;
}